gems.virtus-1.0.5.spec.integration.custom_attributes_spec.rb Maven / Gradle / Ivy

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require 'spec_helper'

describe 'custom attributes' do

  before do
    module Examples
      class NoisyString < Virtus::Attribute
        lazy true

        def coerce(input)
          input.to_s.upcase
        end
      end

      class RegularExpression < Virtus::Attribute
        primitive Regexp
      end

      class User
        include Virtus

        attribute :name, String
        attribute :scream, NoisyString
        attribute :expression, RegularExpression
      end
    end
  end

  subject { Examples::User.new }

  specify 'allows you to define custom attributes' do
    regexp = /awesome/
    subject.expression = regexp
    expect(subject.expression).to eq(regexp)
  end

  specify 'allows you to define coercion methods' do
    subject.scream = 'welcome'
    expect(subject.scream).to eq('WELCOME')
  end

end